knock back
US /nɑk bæk/
UK /nɑk bæk/

短语动词
1.
2.
花费巨大, 耗费
to cost a lot of money
示例:
•
That new car will knock you back a fortune.
那辆新车会让你花掉一大笔钱。
•
The repairs are going to knock us back a few hundred dollars.
维修费用会让我们损失几百美元。
3.
击退, 震退
to cause someone to fall or move backward with a forceful blow
示例:
•
The punch knocked him back against the wall.
那一拳把他打得靠在了墙上。
•
The explosion knocked people back several feet.
爆炸把人们震退了几英尺。
在 Lingoland 学习这个单词